Apparatus for treating cotton fabrics.



S. M. KROSNOWSKI.

APPARATUS FOR TREATING COTTON FABRICS. APPLIoA'rIoN FILED AUG.16, 1911.

1,020,294. l Patented Mar. 12, 1912.

2 SHEETS-SHEET 1.

lo/mens.

S. M. KROSNOWSKI. APPARATUS PoR TRBATING ooTToN FABRICS.

APPLICATION FILED AUG.18, 1911. I

Patented Mar. 12, 1912.

2 SHEETS-SHEET 2.

WT/VESSES.

Vif/V701? 5mn W UNITED sTATEs PATENT oEEroE.

STANISLAW MICHAILOWITSCH KROSNOWSKI, OF ST. PETERSBURG, RUSSIA.

APPARATUS FOR TREATING COTTON FABRICS.

To all whom it may concern:

Be it known that'I, STANISLMV MICHAILO- wITsoH KRosNowsKi, a subject of the Czar of Russia, and residing at St. Petersburg, Russia, have invented certain new and useful Improvements in Apparatus for Treating Cotton Fabrics, of which the following is a specification.

The subject-matter of this invention relates to an apparatus for treating cotton y fabrics in such manner that while the fabric is being treated it remains spread out, but not tensioned, and `runsl continuously through the chamber in which the treatment takes place. The manifold apparatus heretofore employed for this purpose are not entirely K free from defects even if some of them have been largely used in practice. The known steam chambers in which the fabric passed between rollers into and out of the atmoshere of steam, traveling in the form of olds through the chamber, have the defect that the pressure of the steam which, for the purpose of intensively treating the goods, should amount to two atmospheres must be keptat a considerably less pressure', because a perfectly good joint' can not be made where the .fabric enters and leaves the chamber. Recently it has been attempted to introduce the web of fabric into the treat- .j ing chamber and lead it away therefrom W with perfectly tight joints by introducing and removing the web of fabric throu h a ,slot which is covered by a roll and provided in a trough. This arrangement has not,

however, proved satisfactory because the fabric is considerably strained by the pres? sure in the trough and many kinds of material, e g. printed fabrics, which are to be steamed, can not be subjected to any pressure. Also, Taglians process did not fully come up to the expectations, because the columns of liquid located in front of and 4behind the machine, .forming the closure ofy Specification of Letters Patent.

Application filed August 16, 1911.

Patented Mar. 12, 19112. serial No. 644,347.

which consisted in the web of material being run in the form of sheets into a vat and here subjected to steaming while being unwound from one roll and wound up on the other.

Now a primary object of my invention is to provide new apparatus which admits of both continuous Working and the employment of a high pressure, the web of fabric being led in a loose, untensioned state through the apparatus and impregnated on its way several times with they necessary solutions.

My apparatus 'comprises three chambers,

'to wit a treatingfchamber always under pressure, a charging chamber at the inlet end thereof, and a discharging chamber at the outlet end thereof, the latter chambers being under pressure only intermittently while they are connected with the middle or treating chamber, and being intermittently shut off from the middle chamber and at atmospheric pressure when they are connected with the atmosphere. The oods are moved only intermittently in the c arging and discharging chambers, whereas they continuously pass through the treating chamber proper. The charging chamber is generally connected with the atmosphere, and after it has been illedwith the goods is closed from the atmosphere, whereupon after being subjected to pressure the chamber is temporarily connected with the treating chamber for the purpose of delivering the goods to it. The discharging chamber, on the contrary, is generally connected with the treating chamber and is shut off from the same and connected with the atmosphere only when the stock of goods therein are to be conveyed out of the apparatus.

material is conveyed therefrom to the treating chamber, and Fig. 3 is` a sectional detail view showing a suitable closure device Conse- `quently, the fabric is moved continuously adapted to be employed where the goods are introduced into the charging chamber and removed from the discharging chamber.

My apparat-us comprises three chambers I, II, III, of which the rst is herein termed the charging chamber, the middle one the treating chamber, and the last thedischarging chamber. The treating chamber which, when employed for bleaching purposes, is constantly kept at two atmospheres pressure contains a plurality of troughs 1, y2, 3, 4, 5,

6, in which the goods are stored in order to be exposed loose during a long time to the action of steam. When changing from one trough to another the fabric passes the guides y7, 8 and the squeezing rolls-.9. It is soaked with a suitable liquid in the vats 10 of which three -are. shown in the drawing.

. These vats 10are connected together by the pipe 11 and the liquid in them can be kept at a certain level by means of an automatic regulating device not shown. The chambers I and III are for storing the fabric when Acharging and discharging the apparatus. During the time when no fabric is passing either into the chamber I or out ofthe chamber III the two chambers II and III i are connected. `The slot 12 in the partition )form of slide is shown inf Fig. 3 on an en` 13 between the two chambers II and III is open and the fabric moves out ofthe treating chamber from the left to the right in order to be placed in folds in the discharging chamber onthe table 15 by the folding apparatus 14. Simultaneously, a new 'charge is prepared in chamber I which can be shut oft' from .the chamber IIfby the slide 16.

The web offa'bric passes in through the slot 17 temporarilyopen for this purpose and is piled on the table 19 by means of the folder 18 of known construction. After a sufficient quantity of fabric has been stored in the chambers I and III it is transferred out of the chamber I into chamber II and out of chamberpIII as follows z-The slots 12 and 17 are simultaneously closed by means of the slides 2() and 21, respectively. One

may be regulated by the valve 25, has become equal at both sides of the slide 16 to the pressure ofthe chamber II, and the pressure at Iboth sides of'the slide 26 to. atmospheric pressure, the steam admission valve of chamber I and the steam blow-off valve of chamber III are closed, the slides 16 and 26 drawn upward, the tables 19 and 15 tilted about their axles 27 and 28 by means of the arrangements of lexprs 29, 30 connected with the slides 16 and 26, and the fabric conveyed on the one side into the trough 1I and on the other side out of the machine. The slides 16 and 26 thereupon are closed, the tables 19 and 15 brought into their original positions, the valve connecting chamber III with the boiler opened, and the valves connecting chamber I with the atmosphere likewise opened. When the pressure in chamber III has become equal to that in chamber' II and the pressure in chamber I equal to `atmospheric pressure, the steam lblow-Gif valve of chamber I is throttled and the slides 20 and 21 raised.

31 designates a valve for connecting the chambers II and III similar to the regulating valve 25'. f

The troughs 32 and 33 are for storing the fabric still supplied after the slides .20 and 21 have been closed. If after the slides 2Ov and 21 have been raised, those rolls of the folding apparatus recommence to work which did not work while the slides were closed, the troughs 32 and 33 are emptied in the interval between two charges. During this period, therefore, the foldingl apparatus must operate so that not only the fabric stored in the troughs 32, 33 but also the constantly fed fabric is conveyed. The folders move continuously, but the fabric is not folded during the time when the chamber I is being charged and the chamber III discharged. This is brought about by the upper, rotating rolls 34, 35 of the folders being-connected in such manner by means of the levers 36, 37 with the slides 20 and 21 that, when the slides move downward, they are lifted from the .lower rolls and therefore cannot convey the fabric.

The moving mechanism can be divided into two groups, to wit continuously operating mechanism for moving the fabric and intermittently operating mechanism operating during the charging and discharging. To the former group belong the feed rolls 9 in the chamber II, and the folders' in the chambers I and III, while to the second group' belong Athe steam cylinders 38 and 39 and their pistons for operating the slides 16 and 26, the eccentric gears 40, 41 for influencing the slides 20 and 21 and, lastly, the admission and blow-off valves, not. shown, for the chambers I and III. Obviously the indi- Y vidual mechanisms may be influenced as desired for the purpose of bringing about the above working periods. Thus the valves 16 and 26 maybe connected with the pistons 42, 43, as shown in the drawing, which open or close the valves according as'steam is admitted above or below the pistons. The cams 40, 41 act on antifriction rollers provided at the top ends of the rods 22 and 44 in such manner that the slides 20 and 21 are closed thereby. The slides 20, 2l are opened by the Weight of the rolls 34, 35 with 'the aid of the' springs 45, 46.

I claim: i l. In an apparatus for treating broad cotton fabrics in one uninterrupted operation, the combination, with a treating chamber Aalways under pressure, of a charging cham- .shut off from the atmosphere for delivering the goods to the said treating chamber, and being adapted to be placed at the same pressure as and connected with the treating chamber, While the said discharge chamber 1s normally connected with and 1s at the same pressurel as the said treating chamber and is adapted to be closed and brought to atmospheric pressure, means for continuously conveying a web of fabric from the charging chamber into the treating chamber and into the discharging chamber, and means in the charging and dlscharging chambers for intermittently conveying the fabric.

2. In an apparatus for treating broad cotton fabrics in one uninterrupted operation, the combination, with a treating chamber, of a charging chamber at the inlet end thereof and adapted to be connected therewith, a discharging chamber at the outlet end of the said treating chamber and adapted to be connected therewith, means in the charging chamber for intermittently conveying a web of fabric extending through all the said chambers, means for continuously conveying the web of fabric through lthe said treating chamber, and means for intermittently conveying the web of fabric out of the said discharging chamber.

In testimony, that I claim the foregoing as my invention, I have signed my name in presence of two subscribing witnesses.

STANISLAW MICHAILOWITSGH KRSNOWSKI.

Vitnesses:

WoLDEuAR HAUPT, HENRY HASPER. 

